Gas detecting element

Details Gas detecting element Gas detecting element

1978-01-31

1981-03-31

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

324715N, 338 34, 23232E, G01N 2712

Patent

active

042592925

ABSTRACT:
A gas detecting element comprising a hollow cylindrical insulative body, a pair of electrodes provided on the outer periphery of the insulative body, a gas detecting body covering up the outer periphery of the insulative body and the electrodes, a catalyst layer made of a catalytic material and coated on said gas detecting body, thereby covering up the surface of said gas detecting body, and a heater disposed in the hollow of the insulative body. When the gas detecting element comes into contact with a gas, the surface resistance of the gas detecting body varies, thereby detecting the gas.

REFERENCES:
patent: 3092799 (1963-06-01), Baker
patent: 3507145 (1970-04-01), Loh
patent: 3631436 (1971-12-01), Taguchi
patent: 3952567 (1976-04-01), Shinagawa et al.
patent: 3959764 (1976-05-01), Allman
patent: 3961248 (1976-06-01), Kawamura
patent: 3999947 (1976-12-01), Mihara et al.
patent: 4015230 (1977-03-01), Nitta et al.
patent: 4036592 (1977-07-01), Brown et al.
patent: 4045177 (1977-08-01), McNally
patent: 4045178 (1977-08-01), Okinaka et al.
patent: 4099922 (1976-12-01), Yasada

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